| Answer | Crossword Clue |
|---|---|
| heulandite | a mineral of the zeolite family, a hydrous silicate of alumina and lime |
| heulandites | HEULANDITE, a mineral of the zeolite family, a hydrous silicate of alumina and lime |
| scolecite | a hydrous silicate of alumina and lime, occuring in delicate radiating groups of white crystals |
| scolecites | SCOLECITE, a hydrous silicate of alumina and lime, occuring in delicate radiating groups of white crystals |
| stilbite | white-to-brown or red zeolite mineral, a hydrous silicate of calcium and aluminum, occurring in sheaflike aggregates of crystals and in radiated masses |
